The Transformer,power, cataloged under National Stock Number 5950-01-250-2553, is classified within Federal Supply Class 5950 (Coils and Transformers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Magnetika Inc. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5950-01-250-2553 |
| Primary Part Number | WE3890 |
| Item Name | Transformer,power |
| FSC / FSG | 5950 / 59 — Coils and Transformers |
| Manufacturer | Magnetika Inc |
| Status | ACTIVE |
| Mounting Facility Quantity | 4 SINGLE GROUPUNABLE TO DECODE |
| Inclosure Type | HERMETICALLY SEALED |
| Winding Power Rating | UNABLE TO DECODE0.2 VOLTS-AMPERES SINGLE COMPONENT SECOND PRIMARY |
| Winding Power Rating | UNABLE TO DECODE0.4 VOLTS-AMPERES SINGLE COMPONENT FIRST PRIMARY |
| Input-Output Phase Relationship | SINGLE PHASE TO SINGLE PHASE SINGLE COMPONENTUNABLE TO DECODE |
| Mounting Method | THREADED STUD(S) SINGLE GROUPUNABLE TO DECODE |
| Body Width | 1.540 INCHES MAXIMUM IN |
| Body Height | 1.680 INCHES MAXIMUM IN |
| Maximum Transformer Power Rating | 0.6 VOLT-AMPERE SINGLE COMPONENTUNABLE TO DECODE |
| Winding Shielding Method | INTERNAL SHIELD GROUNDED TO INCLOSURE SINGLE COMPONENTUNABLE TO DECODE |
| Nominal Thread Size | 0.138 INCHES SINGLE GROUPUNABLE TO DECODE IN |
| Maximum Operating Temp | 130.0 CELSIUS DEGC |
| Body Length | 1.540 INCHES MAXIMUM IN |
| Winding Operating Current | UNABLE TO DECODE20.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SECOND PRIMARY |
| Winding Operating Current | UNABLE TO DECODE40.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT FIRST PRIMARY |
| Reliability Indicator | NOT ESTABLISHED |
| Frequency Rating | 2.05 KILOHERTZ NOMINAL SINGLE COMPONENTUNABLE TO DECODE |
| Center to Center Distance Between Mounting Facilities Parallel to Width | 1.187 INCHES NOMINAL SINGLE MOUNTING FACILITY SINGLE CENTER GROUPUNABLE TO DECODE IN |
| Winding Operating Voltage | UNABLE TO DECODE10.00 AC VOLTS NOMINAL SINGLE COMPONENT ALL PRIMARY |
| Winding Operating Voltage | UNABLE TO DECODE19.70 AC VOLTS NOMINAL SINGLE COMPONENT SECOND SECONDARY |
| Winding Operating Voltage | UNABLE TO DECODE80.00 AC VOLTS NOMINAL SINGLE COMPONENT FIRST SECONDARY |
| Terminal Type and Quantity | 8 TURRET |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) SINGLE GROUPUNABLE TO DECODE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
NSN 5950-01-250-2553 is a Transformer,power, manufactured by Magnetika Inc, classified under FSC 5950, Coils and Transformers. Status: active.
NSN 5950-01-250-2553 has 2 manufacturer part numbers on file: 732571-1 (Raytheon Company Div Rmd Strategic), WE3890 (Magnetika Inc).
1 possible match (shared part number, not a government interchangeability claim): 3120-01-463-4142. Verify interchangeability with system specifications before substitution.
Key specifications for WE3890: Mounting Facility Quantity: 4 SINGLE GROUPUNABLE TO DECODE; Inclosure Type: HERMETICALLY SEALED; Winding Power Rating: UNABLE TO DECODE0.2 VOLTS-AMPERES SINGLE COMPONENT SECOND PRIMARY; Winding Power Rating: UNABLE TO DECODE0.4 VOLTS-AMPERES SINGLE COMPONENT FIRST PRIMARY. 23 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.